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Finding the Fourth Proportional to 644,686,656.60, 967,029,984.90 and 644,686,656.60

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Solution

The fourth proportional to 644,686,656.60, 967,029,984.90 and 644,686,656.60 is: 967,029,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,686,656.60 : 967,029,984.90 = 644,686,656.60 : x
  2. Step 2: Convert to fraction form
    644,686,656.60/967,029,984.90 = 644,686,656.60/x
  3. Step 3: Cross multiply
    644,686,656.60x = 967,029,984.90 × 644,686,656.60
  4. Step 4: Simplify right side
    644,686,656.60x = 623,431,327,797,129,472
  5. Step 5: Solve for x
    x = 623,431,327,797,129,472/644,686,656.60
  6. Step 6: Final answer
    x = 967,029,984.90

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.